(CNN) - Pennsylvania Gov. Tom Corbett's stance on same-sex marriage is no secret, after bringing a legal challenge against a county clerk who tried to sign marriage licenses for same-sex couples. Friday, Corbett went a step further, comparing gay marriage to a union between siblings.

In an interview with CNN affiliate WHP-TV, Corbett was answering a question about comments made by a member of his legal team who had compared same-sex marriage to the marriage of 12 year-olds, with both unions being illegal.

Corbett, a Republican, said that "It was an inappropriate analogy. I think a much better analogy would have been brother and sister, don't you?"FULL POST

Fifty-three percent of Virginia voters approve of the job Republican Gov. Bob McDonnell is doing in office, with just 26% giving him a thumbs down, according to a new Quinnipiac University poll.FULL POST

Pennsylvania Gov. Ed Rendell is term limited and prevented from running for re-election this year.

(CNN) - Republicans have the advantage in this year's battle for Pennsylvania governor and for one of the state's U.S. Senate seats, according to a new poll.

A Quinnipiac University survey of Pennsylvania voters released Thursday indicates that the leading GOP candidate, Attorney General Tom Corbett, remains ahead of each of the three top Democratic contenders by double digits in hypothetical general election matchups. The incumbent governor, Democrat Ed Rendell, is term limited and prevented from running for re-election this year.

According to the poll, in the Senate campaign Republican challenger Pat Toomey leads Sen. Arlen Specter 46 percent to 41 percent, with 12 percent undecided. The advantage for Toomey is just inside the poll's sampling error. Toomey trailed Specter in a Quinnipiac poll released a month ago. The two men have exchanged small leads since last autumn.

Toomey is a former congressman and former head of the Club for Growth, a limited-government and anti-tax organization. Specter, a five-term senator, switched parties from Republican to Democrat last spring. At the time of the party flip, he cited the difficulty in winning the Republican primary against Toomey as a factor.

"A Toomey-Specter race could continue swinging back and forth until November because most voters won't begin to focus on it until after Labor Day," says Peter A. Brown, assistant director of the Quinnipiac University Polling Institute.